WO2008054583A1 - Composite non tissé - Google Patents

Composite non tissé Download PDF

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Publication number
WO2008054583A1
WO2008054583A1 PCT/US2007/020710 US2007020710W WO2008054583A1 WO 2008054583 A1 WO2008054583 A1 WO 2008054583A1 US 2007020710 W US2007020710 W US 2007020710W WO 2008054583 A1 WO2008054583 A1 WO 2008054583A1
Authority
WO
WIPO (PCT)
Prior art keywords
woven
fibers
layer
woven material
boundary plane
Prior art date
Application number
PCT/US2007/020710
Other languages
English (en)
Inventor
David E. Wenstrup
Gregory J. Thompson
Leanne Flack
Thomas E. Godfrey
Original Assignee
Milliken & Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Milliken & Company filed Critical Milliken & Company
Priority to CA 2662815 priority Critical patent/CA2662815A1/fr
Priority to EP20070852428 priority patent/EP2074249A1/fr
Priority to MX2009002719A priority patent/MX2009002719A/es
Publication of WO2008054583A1 publication Critical patent/WO2008054583A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
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    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
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    • B32B5/145—Variation across the thickness of the layer
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    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
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    • B32B2250/20—All layers being fibrous or filamentary
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    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
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    • B32B2262/14—Mixture of at least two fibres made of different materials
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0815—Acoustic or thermal insulation of passenger compartments
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
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    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B2001/7687—Crumble resistant fibrous blankets or panels using adhesives or meltable fibres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/697—Containing at least two chemically different strand or fiber materials

Definitions

  • the present invention generally relates to non-woven materials with a voluminous z direction component which have a surface skin and a woven, knitted, or non-woven layer added on either one or both sides of the voluminous non-woven.
  • the barrier properties are best accomplished by using specialty fibers and or materials that generate a high level of performance, but also introduce significant cost to the substrate. Especially in a voluminous thickness substrate, the introduction of even a small percent of these materials into the shield material can introduce a significant level of cost to the overall substrate. For this reason composites having specialty surface layers are often used to provide these barrier properties. An example would be a thin layer of high cost but highly effective specialty material laminated to a voluminous lower cost core material. While the resulting composite costs less than more homogenous composites, there are disadvantages such as the need for additional processing steps and the potential delamination of the skin layer. [0004] The present invention is an alternative to the prior art.
  • Non-woven material with different functional zones to provide various desired properties of the material localized to the vertically oriented zones where required.
  • Low melt fibers that can be used to construct a "skin" on one, or both, planar sides of the non-woven material can be localized to the sides of the material specifically.
  • the formation of this skin and the addition of woven, non- woven, and knitted fabric layers can provide a barrier between the atmosphere and the interior of the non-woven material, can provide a smoother more aesthetically pleasing surface, and can improve other performance features such as abrasion, sound absorption, and rigidity.
  • the invention has superior molding performance because the low melt fibers can be not only optimized in quantity for superior performance, but can also be localized to optimize performance for specific mold design.
  • Superior acoustic properties can be achieved by creating a distinct skin and additional fabric layers on the surface zones of the non-woven material with a lower air permeability than the core.
  • low melt fibers of the same chemical nature as the voluminous core an essentially single recyclable material can be achieved. All of these benefits are achieved at competitive costs and weight compared to the existing products.
  • FIG. 1 shows a cross-section of one embodiment of a non-woven material of the present invention
  • FIG. 2 shows a cross-section of another embodiment of a non-woven material of the present invention
  • FIG. 3 shows a cross-section of yet another embodiment of a non-woven material of the present invention
  • FIG. 4 shows a diagram of a machine for performing a process for forming the non-woven material of the present invention
  • FIGS. 5-19 show cross-sections of other embodiments of a non-woven composite of the present invention.
  • the non-woven material 114 generally includes first binder fibers 121 , first effect fibers 122, and second binder fibers 131. In another embodiment, the non-woven material 114 also includes second effect fibers 132.
  • binder fibers are fibers that form an adhesion or bond with the other fibers. Binder fibers can include fibers that are heat activated.
  • heat activated binder fibers are fibers that can melt at lower temperatures, such as low melt fibers, core and sheath fibers with a lower sheath melting temperature, and the like.
  • the binder fibers are a polyester core and sheath fiber with a lower melt temperature sheath.
  • a benefit of using a heat activated binder fiber as the second binder fiber 131 in the non-woven material 114, is that the material can be subsequently molded to part shapes for use in automotive hood liners, engine compartment covers, ceiling tiles, office panels, etc.
  • effect fibers are any additional fibers which may be beneficial to have located in the respective zone, or concentrated near the respective surface. These effect fibers may be used to impart color or functionality to the surface.
  • Effective fibers of color can give the non-woven material the desired aesthetic appearance.
  • effect fibers can also include performance fibers such as chemical resistant fibers (such as polyphenylene sulfide and polytetrafluoroethylene), moisture resistant fibers (such as polytetrafluoroethylene and topically treated materials like polyester), fire retardant fibers, or others.
  • fire retardant fibers shall mean fibers having a Limiting Oxygen Index (LOI) value of 20.95 or greater, as determined by ISO
  • Types of fire retardant fibers include, but are not limited to, fire suppressant fibers and combustion resistant fibers.
  • Fire suppressant fibers are fibers that meet the LOI by consuming in a manner that tends to suppress the heat source. In one method of suppressing a fire, the fire suppressant fiber emits a gaseous product during consumption, such as a halogenated gas.
  • fiber suppressant fibers include modacrylic, PVC, fibers with a halogenated topical treatment, and the like.
  • Combustion resistant fibers are fibers that meet the LOI by resisting consumption when exposed to heat. Examples of combustion resistant fibers include silica impregnated rayon such as rayon sold under the mark VISIL ® , partially oxidized polyacrylonitrile, polyaramid, para-aramid, carbon, meta-aramid, melamine and the like.
  • the first effect fibers 122 are a bulking fiber.
  • Bulking fibers are fibers that provide volume in the z direction of the non-woven material, which extends perpendicularly from the planar dimension of the non- woven material 114.
  • Types of bulking fibers would include fibers with high denier per filament (5 denier per filament or larger), high crimp fibers, hollow-fill fibers, and the like. These fibers provide mass and volume to the material.
  • Examples of fibers used as first effect fibers 122 include polyester, polypropylene, and cotton, as well as other low cost fibers.
  • the non-woven material 114 includes a first planar zone 120 and a second planar zone 130.
  • the first planar zone 120 has a first boundary plane
  • the non-woven material 114 is a unitary material, and the boundaries of the two zones do not represent the delineation of layers, but rather areas within the unitary material.
  • FIG. 1 illustrates the first planar zone 120 as being a smaller thickness in the z-direction than the second planar zone 130, the relative thickness of the two zones can be different than as shown.
  • the first planar zone 120 contains first binder fibers 121 , first effect fibers 122, and second binder fibers 131 , (and optionally second effect fibers 132).
  • the first planar zone 120 has a greater concentration of the first binder fibers 121 than the second planar zone 130. Additionally, the distribution of the fibers in the first planar zone 120 is such that the concentration of the first binder fibers 121 is greater at the first boundary plane 101 of the first planar zone 120 than the first zone inner boundary plane 111a. Moreover, it is preferred that the concentration of the first binder fibers 121 decreases in a gradient along the z-axis from the first boundary plane 101 to the first zone inner boundary plane 111a.
  • the second planar zone 130 also contains second binder fibers 121 , first effect fibers 122, and second binder fibers 131 , (and optionally second effect fibers 132). As such, the second planar zone 130 has a greater concentration of the second binder fibers 131 than the first planar zone 120. Additionally, the distribution of the fibers in the second planar zone 130 is such that the concentration of the second binder fibers 131 is greater at the second boundary plan 104 than the second zone inner boundary plane 111b. Additionally, it is preferred that the concentration of the second binder fibers 131 decreases in a gradient along the z-axis from the second boundary plane 104 to the second zone inner boundary plane 111b.
  • the first effect fibers 122 are about the same denier as the first binder fibers 121 or larger, but smaller than the second binder fiber 131.
  • the first effect fibers 122 have the same distribution and gradient along the z-axis as the first binder fibers 121.
  • the concentration of the first effect fibers 122 increases in a gradient from the first boundary plane 101 to a inner location in the non-woven material 114, and then the concentration of the first effect fibers 122 decreases in a gradient from that inner location to the second boundary plane 104.
  • the second effect fibers 132 are about the same size as the second binder fiber 131 or smaller, but larger than the first binder fibers 121.
  • the second effect fibers 132 When the second effect fibers 132 are about the same denier as the second binder fibers 131 , the second effect fibers 132 have the same distribution and gradient along the z-axis as the second binder fibers 131. When the second effect fibers 132 have a smaller denier than the second binder fibers 131 , the concentration of the second effect fibers 132 increases in a gradient from the second boundary plane 104 to a inner location in the non-woven material 100, and then the concentration of the second effect fibers 122 decreases in a gradient from that inner location to the first boundary plane 101.
  • the non-woven material 112 generally includes the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132, as described with reference to the non-woven material 114 in FIG. 1. Also similar to the non-woven material 114, the non-woven material 112 includes first boundary plane 101 , a second boundary plane 104, a first planar zone 120, a second planar zone 130, a first zone inner boundary plane 111a, and a second zone inner boundary plane 111b.
  • the first planar zone 120 in the non-woven material 112 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the first planar zone 120 of the non-woven material 114 in FIG. 1.
  • the second planar zone 130 in the non-woven material 112 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the second planar zone 130 of the non-woven material 114 in FIG. 1.
  • the non-woven material 112 does not include the first surface skin 141 as shown with the non- woven material 114 of FIG. 1.
  • the non-woven material in addition to the common elements that the non-woven material 112 has with the non-woven material 114, the non- woven material also includes a second surface skin 140 along the second boundary plane 104.
  • the second surface skin 140 contains second binder fibers 131 , wherein the second binder fibers 131 are melt-bonded into the semi-rigid skin.
  • the second surface skin 140 can also contain the first binder fiber 121 , the first effect fiber 122, and the optional second effect fibers 132. However, the second surface skin 140 will contain lesser amounts of the first binder fiber 121 or the first effect fiber 122 than the second binder fiber 131 or the optional second effect fiber 132 (not shown).
  • the non-woven material 110 generally includes the first binder fibers
  • the non-woven material 110 includes first boundary plane 101 , a second boundary plane 104, a first planar zone 120, a second planar zone 130, a first zone inner boundary plane 111a, and a second zone planar inner boundary plane 111b.
  • the first planar zone 120 in the non-woven material 110 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and the optional second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the first planar zone 120 of the non- woven material 114 in FIG. 1.
  • the second planar zone 130 in the non-woven material 110 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the second planar zone 130 of the non-woven material 114 in FIG. 1.
  • the non-woven material 110 in addition to the common elements that the non-woven material 110 has with the non-woven material 112 of FIG. 2, the non-woven material 110 also includes a first surface skin 141 along the first boundary plane 101 and a second surface skin 140 along the second boundary plane 104.
  • the first surface skin 141 in the non-woven material 110 has the same fibers and properties as the first surface skin 141 in the non-woven material 114 of FIG. 1
  • the second surface skin 140 in the non-woven material 110 has the same fibers and properties as the first surface skin 140 in the non-woven material 112 of FIG. 2.
  • FIG. 4 there is shown a diagram illustrating a process for forming the non-woven material 114 from FIG. 1 , the non-woven material 112 from FIG. 2, or the non-woven material 110 from FIG. 3.
  • air lay equipment 400 uses differences in the fibers to lay the fibers on a collection belt 430 with the concentration of each type of fiber varying in the z-direction, which is perpendicular to the plane of the non-woven material 114, 112, 110, as it lays on the collection belt 430.
  • a commercially available piece of equipment that has been found satisfactory in this process to form the claimed invention is the "K-12 HIGH-LOFT RANDOM CARD" by Fehrer AG, in Linz, Austria.
  • the varying concentration of the fibers in the non-woven material is accomplished by using fibers types having different deniers, which results in the different fibers collecting on the collection belt 430 primarily at different locations.
  • the fibers are projected along the collection belt 430 in the same direction as the travel direction of the collection belt 430. Fibers with a larger denier will tend to travel further than smaller denier fibers down the collection belt 430 before they fall to the collection belt 430. As such, there will tend to be a greater concentration of the smaller denier fibers closer to the collection belt 430 than larger denier fibers. Also, there will tend to be a greater concentration of the larger denier fibers farther from the collection belt 430 than smaller denier fibers.
  • the first binder fibers 121 and the first effect fibers 122 have a smaller denier per filament than the second binder fibers 131 and the optional second effect fibers 132. It has been found that a good distribution of binder fibers in the non-woven material can be accomplished by the first binder fibers 121 having a denier ranging from about 1 to about 4 deniers and the second binder fibers 131 having a denier greater than about 4 denier.
  • Selection of the denier of the various fibers must be such that the difference in the denier between the fibers primarily in the first zone 120 with the fibers primarily in the bulking zone 130 is sufficient to create the desired distribution and gradient of the fibers in the non-woven material 114, 112, 110.
  • the difference between the denier of fibers primarily in bulking zone 130 is at least about two times (2X) the denier or greater than the denier of the fibers primarily in the first zone 120.
  • the first binder fiber 121 , the first effect fiber 121 , the second binder fiber 131 , and optionally the second effect fiber 132 are staple fibers having a length of from about 1 inch to about 3.5 inches, and more preferably from about 1.5 inches to about 2.5 inches.
  • the first binder fibers 121 , the first effect fibers 122, and the second binder fibers 131 are opened and blended in the appropriate proportions and delivered to a cylinder 420.
  • the second effect fibers 132 are also opened and blended with the first binder fibers 121 , the first effect fibers 122, and the second binder fibers 131.
  • the cylinder 420 rotates and throws the blended fibers towards the collection belt 430 whereby the fibers are collected as they fall from the throwing pattern.
  • the spinning rotation of the cylinder 420 is such that larger denier fibers tend to travel further than the smaller denier fibers in the direction of travel for the collection belt 430 before resting on the collection belt 430. Therefore, the web 100' of fibers collected on the collection belt 430 will have greater concentration of the smaller denier fibers in the z-direction adjacent to the collection belt 430 at the web first surface 101', and a greater concentration of the larger denier fibers in the z-direction further away from the collection belt 430 at the web second surface 104'.
  • Inherent in the process of forming the web 100' is the progressive decrease, or gradient, in the concentration of the first binder fibers 121 , where the concentration of the first binder fibers 121 continuously decreases as a function of the distance from the web first surface 101 ', adjacent to the collection belt 430, moving towards the opposite or web second surface 104'. Also inherent in the process of forming the web 100' is the progressive decrease, or gradient, in the concentration of the second binder fibers 131 , where the concentration of the second binder fibers 131 continuously decreases as a function of the distance from the web second surface 104' moving towards the opposite or web first surface 101 '.
  • the non-woven web 100' After the non-woven web 100' is formed, it can be heated so that the first binder fibers 121 and the second binder fibers 131 at least partially melt bond with at least a portion of the other fibers.
  • This heating step stabilizes the non-woven web 100' until the process can be completed to form the non-woven material 114, 112, 110 or subsequent composite structures.
  • the heating step to stabilize the non-woven web 101 ' can be conducted simultaneously with the step of forming of the skin 141 , 140 of the non-woven material 114, 112, 110, as disclosed below, by using the same heat source that creates the skin 141.
  • the web first surface 101 ' of the non-woven web 101 ' is subjected to a heat treatment, such as a calendar or a heated belt, which causes the first binder fibers 121 at the web first surface 101 ' to fuse together and with the other fibers in the web first surface 101 ' to form a film-like surface or skin.
  • the skin surface formed on the web first surface 101' is first skin 141 of the non-woven material 114.
  • the fusing of material at the first boundary plane 101 to form the first skin 141 creates a non-woven material 114 with reduced air permeability, improved sound absorption, increased abrasion resistance, and increased rigidity as compared to similar material without a fused skin.
  • the web second surface 104' of the non-woven web 101 ' is subjected to a heat treatment, such as a calendar or a heated belt, which causes the second binder fibers 131 at the web second surface 104' to fuse together and with the other fibers in the web second surface 104' to form a film-like surface or skin.
  • a heat treatment such as a calendar or a heated belt
  • the skin surface formed on the web second surface 104' is the second skin 140 of the non-woven material 112.
  • the fusing of material at the web second surface 101 to form the second skin 140 creates a non-woven material 112 with reduced air permeability, improved sound absorption, and increased abrasion resistance as compared to similar material without a fused skin.
  • the web first surface 101' and the web second surface 104' of the non- woven web 100' are each subjected to a heat treatment, such as a calendar or a heated belt.
  • the non-woven web 101 ' is heat treated between a pair of heated belts, such as a laminator, to simultaneously heat the web first surface 101 ' and the web second surface 104'.
  • the heat treatment at the web first surface 101 ' causes the first binder fibers 121 at the web first surface 101 ' to fuse together with the other fibers in the web first surface 101' to form a film-like surface or skin.
  • the skin surface formed on the web first surface 101 ' is the first skin 141 of the non-woven material 110.
  • the heat treatment at the web second surface 104' causes the second binder fibers 131 at the web second surface 104' to fuse together and with the other fibers in the web second surface 104' to form a film-like surface or skin.
  • the skin surface formed on the web second surface 104' is the second skin 140 of the non-woven material 110.
  • the web first surface 101' and the web second surface 104' correlate to the first boundary plane 101 and the second boundary plane 104, respectively, of the non-woven material 100, 200,
  • the distribution of the first binder fibers 121 , the first effect fibers 122, second binder fibers 131 , and optionally the second effect fibers 132 in the non- woven web 101' is the same as the distribution of those same fibers in the non- woven material 100, 200, 300. It is this same distribution of fibers by the equipment 400 that creates the first planar zone 120 and the second planar zone
  • the non-woven composite 500 includes the non-woven material 110 which generally includes the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132, as described with reference to the non-woven material 110 in FIG. 3.
  • the non-woven material 110 of the non-woven composite 500 includes first boundary plane 101 , a second boundary plane 104, a first planar zone 120, a second planar zone 130, a first zone inner boundary plane 111a, and a second zone planar inner boundary plane 111 b.
  • the first planar zone 120 in the non-woven material 110 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the first planar zone 120 of the non- woven material 110 in FIG. 3.
  • the second planar zone 130 in the non-woven material 110 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the second planar zone 130 of the non-woven material 110 in FIG. 3.
  • the non- woven material 110 also includes a first surface skin 141 along the first boundary plane 101 and a second surface skin 140 along the second boundary plane 104. While FIG. 5 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110, non-woven composite 500 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • a stiffening layer 160 is secured along the first boundary plane 101 of the non- woven layer 110 by an adhesive layer 150.
  • the adhesive layer 150 may be any suitable material that will secure the stiffening layer(s) or knit or woven layer(s) to the non-woven material 110.
  • the adhesive layer 150 is a non-woven layer made by interlocking the fibers or filaments.
  • the adhesive layer is made of low melt polyester (PET) fibers.
  • PET low melt polyester
  • the adhesive layer may also be extruded, sprayed, or powder coated onto the composite.
  • the adhesive layer preferably has a melting temperature of about 160 - 200 c C.
  • the adhesive layer 150 is typically much thinner than the non- woven material 110.
  • the stiffening layer 160 located on the adhesive layer 150 and is a non-woven with a high tenacity then the non-woven material 110.
  • This stiffening layer 160 can be non-woven such as a spun bond, spun lace, needle punch, air laid, wet laid, pattern bond non-woven.
  • the stiffening non-woven layer 160 may be made of any natural or man-made fibers suitable to the composite, including polyester, cotton, polyester/cotton blends, nylon, polyarylenes, olefin fibers such as polyethylene and polypropylene, FR (fire resistant) fibers such as modacrylic, VisilTM (silica modified rayon), partially oxidized acrylonitrile (PAN), spandex yarns, rayon, and FR treated yarns of above.
  • the stiffening non-woven layer 160 may be printed before of after application to the composite.
  • the stiffening non-woven layer 160, 162 may have a weight of about 0.5 oz/yd 2 to about 2 oz/yd 2 .
  • the non-woven composite 600 includes the non-woven material 110 which generally includes the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132, as described with reference to the non-woven material 110 in FIG. 3.
  • the non-woven material 110 of the non-woven composite 500 includes first boundary plane 101 , a second boundary plane 104, a first planar zone 120, a second planar zone 130, a first zone inner boundary plane 111a, and a second zone planar inner boundary plane 111 b.
  • the first planar zone 120 in the non-woven material 110 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and the optional second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the first planar zone 120 of the non- woven material 110 in FIG. 3.
  • the second planar zone 130 in the non-woven material 110 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the second planar zone 130 of the non-woven material 110 in FIG. 3.
  • the non- woven material 110 also includes a first surface skin 141 along the first boundary plane 101 and a second surface skin 140 along the second boundary plane 104.
  • FIG. 6 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110, the non-woven composite 600 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • a first stiffening layer 160 is secured along the first boundary plane 101 of the non- woven layer 110 by the binder fibers in the first surface skin 141 of the non- woven material 110 and/or the fibers in the stiffening layer 160.
  • the binder fibers in the first surface skin 141 and/or the fibers in the stiffening layer 160 secure the stiffening layer 160 to the first boundary plane 101 by a melt bond.
  • the non-woven composite 700 includes the non-woven material 110 which generally includes the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132, as described with reference to the non-woven material 110 in FIG. 3.
  • the non-woven material 110 of the non-woven composite 500 includes first boundary plane 101 , a second boundary plane 104, a first planar zone 120, a second planar zone 130, a first zone inner boundary plane 111a, and a second zone planar inner boundary plane 111 b.
  • the first planar zone 120 in the non-woven material 110 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the first planar zone 120 of the non- woven material 110 in FIG. 3.
  • the second planar zone 130 in the non-woven material 110 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the second planar zone 130 of the non-woven material 110 in FIG. 3.
  • the non- woven material 110 also includes a first surface skin 141 along the first boundary plane 101 and a second surface skin 140 along the second boundary plane 104. While FIG. 7 is described with non-woven material 110 of FIG. 3 with skin layers
  • non-woven composite 700 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • a stiffening layer 162 is secured along the first boundary plane 101 of the non- woven layer 110 by an adhesive layer 152.
  • Adhesive layer 152 has the same makeup and composition as adhesive layer 150.
  • FIG. 8 there is shown a cross-sectional view of a non-woven composite 800 illustrating an embodiment of the present invention.
  • the non-woven composite 800 includes the non-woven material
  • the non-woven material 110 which generally includes the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132, as described with reference to the non-woven material 110 in FIG. 3. Also similar to the non-woven material 110 of FIG.3, the non-woven material 110 of the non- woven composite 800 includes first boundary plane 101 , a second boundary plane 104, a first planar zone 120, a second planar zone 130, a first zone inner boundary plane 111a, and a second zone planar inner boundary plane 111 b.
  • the first planar zone 120 in the non-woven material 110 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and the optional second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the first planar zone 120 of the non- woven material 110 in FIG. 3.
  • the second planar zone 130 in the non-woven material 110 contains the first binder fibers 121 , the first effect fibers 122, the second binder fibers 131 , and optionally the second effect fibers 132 in the same relative weight, concentrations, and distributions as describe with respect to the second planar zone 130 of the non-woven material 110 in FIG. 3.
  • the non- woven material 110 also includes a first surface skin 141 along the first boundary plane 101 and a second surface skin 140 along the second boundary plane 104. While FIG. 8 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110, the non-woven composite 800 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • a second stiffening layer 162 is secured along the second boundary plane 104 of the non-woven layer 110 by the binder fibers in the second surface skin 140 of the non-woven material 110 and/or the fibers in the stiffening layer 162.
  • the binder fibers in the second surface skin 140 and/or the fibers in the stiffening layer 162 secure the stiffening layer 162 to the second boundary plane 104 by a melt bond.
  • FIG. 9 there is shown a cross-sectional view of a non-woven composite 900 illustrating an embodiment of the present invention.
  • the non-woven composite 900 includes the non-woven material
  • non-woven composite 900 includes a a knit or woven layer 170 secured to the second boundary plane by the second adhesive layer 152. While FIG. 9 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110, the non-woven composite 900 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • the knit or woven layer 170 may be any knit or woven fabric, including a warp and circular knit.
  • the knit or woven layer 170 may be made of any natural or man-made fibers, or combinations thereof, suitable to the composite, including polyester, cotton, polyester/cotton blends, nylon, polyarylenes, olefin fibers such as polyethylene and polypropylene, FR (fire resistant) fibers such as modacrylic, rayon, VisilTM (silica modified rayon), partially oxidized acrylonitrile (PAN), spandex yarns, and FR treated yarns of above.
  • the yarns may be monofilament, multifilament, or staple.
  • the knit or woven layer 170 is typically the outermost layer of the composite meaning that the knit or woven layer 170 is viewed and touched by the consumer.
  • the knit or woven layer 170 typically has a pattern and may have a certain feel or other physical characteristics. In one embodiment, the woven or knit layer 170 may have a weight of about 4 oz/yd 2 to 15 oz/yd 2 .
  • non-woven composite 1000 includes the non-woven material 110, and stiffening layer 160 as shown and described in FIG. 6.
  • non-woven composite 900 includes a knit or woven layer 170 secured to the second boundary plane 104 of non-woven material 110 by the binder fibers in the non-woven material 110 and/or the fibers making up the knit or woven layer 170.
  • the binder fibers in the second surface skin 140 and/or the fibers in the knit or woven layer 170 secure the knit or woven layer 170 to the second boundary plane 104 by a melt bond. While FIG.
  • the non-woven composite 1000 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non- woven material.
  • FIG. 11 there is shown a cross-sectional view of a non-woven composite 1100 illustrating an embodiment of the present invention.
  • the non-woven composite 1100 includes the non-woven material 110, first adhesive layer 152, and stiffening layer 162 as shown and described in FIG. 7. Additionally, non-woven composite 1100 includes a knit or woven layer 172 secured by a second adhesive layer 150 located along the first boundary plane 101. While FIG. 11 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110, the non-woven composite 1100 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • non-woven composite 1200 includes the non-woven material 110, and stiffening layer 162 as shown and described in FIG. 8. Additionally, non-woven composite 1200 includes a knit or woven layer 170 located on the second boundary plane 104 of non-woven material 110. The binder fibers in the second surface skin 140 and/or the fibers in the knit or woven layer 170 secure the knit or woven layer 170 to the second boundary plane 104 by a melt bond.
  • the binder fibers in the non-woven material 110 and/or the fibers making up the knit or woven layer 170 cause the layer 170 to adhere to the non-woven material 110.
  • FIG. 12 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110
  • the non-woven composite 1200 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • FIG. 13 there is shown a cross-sectional view of a non-woven composite 1300 illustrating an embodiment of the present invention. As illustrated, the non-woven composite 1300 includes the non-woven material 110, first adhesive layer 152, and stiffening layer 162 as shown and described in FIG. 7.
  • non-woven composite 1100 includes a second stiffening layer 160 secured by a second adhesive layer 150 located along the first boundary plane 101. While FIG. 13 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110, the non-woven composite 1300 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material. [0046] Referring now to FIG. 14, there is shown a cross-sectional view of a non-woven composite 1400 illustrating an embodiment of the present invention. As illustrated, the non-woven composite 1200 includes the non-woven material 110, and stiffening layer 162 as shown and described in FIG. 8.
  • non-woven composite 1400 includes a second stiffening layer secured to the first boundary plane 101 of non-woven material 110.
  • the binder fibers in the first surface skin 141 and/or the fibers in the second stiffening layer 162 secure the second stiffening layer 162 to the first boundary plane 101 by a melt bond.
  • the binder fibers in the non-woven material 110 and/or the fibers making up the stiffening layers 160, 162 cause the layers 160, 162 to adhere to the non-woven material 110. While FIG. 14 is described with non-woven material
  • the non-woven composite 1400 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • non-woven composite 1500 includes the non-woven material 110, adhesive layers 150, 152, and stiffening layers 160, 162, as shown and described in FIG. 13. Additionally, non-woven composite 1500 includes a third adhesive layer 154 (of the same composition and materials as adhesive layer 150) located on the stiffening layer 162 on the side opposite the adhesive layer 152 and a knit or woven layer 174 (of the same composition as knit or woven layer 170) on the third adhesive layer 154 on the side opposite to the stiffening layer 162.
  • a third adhesive layer 154 of the same composition and materials as adhesive layer 150 located on the stiffening layer 162 on the side opposite the adhesive layer 152
  • a knit or woven layer 174 of the same composition as knit or woven layer 170
  • the third adhesive layer 154 and the knit or woven layer 174 were described as being on the side of the stiffening layer 162, they could have been located on the stiffening layer 160. While FIG. 15 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110, the non-woven composite 1500 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non- woven material.
  • non-woven composite 1600 includes the non-woven material 110 as shown and described in FIG. 3. Additionally, non-woven composite 1600 includes a first adhesive layer 150 located along the first boundary plane 101 and a knit or woven layer 172 located on the first adhesive layer 150 (on the side of the adhesive layer 150 opposite to the non-woven material 110). While the adhesive layer 150 and knit or woven layer 172 were described as being on the first boundary plane 101 , they may also have been located on the second boundary plane 104 (not shown). While FIG. 16 is described with non-woven material 110 of FIG.
  • the non-woven composite 1600 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • FIG. 17 there is shown a cross-sectional view of a non-woven composite 1700 illustrating an embodiment of the present invention. As illustrated, the non-woven composite 1700 includes the non-woven material 110, the first adhesive layer 150, and the knit or woven layer 172 as shown and described in FIG. 16.
  • non-woven composite 1700 includes a second adhesive layer 152 located along the second boundary plane 104 and a knit or woven layer 170 located on the second adhesive layer 152 (on the side of the adhesive layer 152 opposite to the non-woven material 110). While FIG. 17 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110, the non-woven composite 1700 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • non-woven composite 1800 includes the non-woven material 110 as shown and described in FIG. 3. Additionally, non-woven composite 1800 includes a knit or woven layer 172 located on the first boundary plane 101 of non-woven material 110. While the knit or woven layer 172 was described as being on the first boundary plane 101 , it may also have been located on the second boundary plane 104 (not shown). The binder fibers in the non-woven material 110 and/or the fibers making up the knit or woven layer 172 cause the layer 172 to adhere to the non-woven material 110. While FIG. 16 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110, the non-woven composite 1800 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • FIG. 19 there is shown a cross-sectional view of a non-woven composite 1900 illustrating an embodiment of the present invention.
  • the non-woven composite 1900 includes the non-woven material 110 and the knit or woven layer 172 as shown and described in FIG. 18.
  • non-woven composite 1900 includes a knit or woven layer 170 secured along the second boundary plane 104.
  • the binder fibers in the non- woven material 110 and/or the fibers making up the knit or woven layers 170, 172 cause the layer 170, 172 to adhere to the non-woven material 110.
  • FIG. 19 is described with non-woven material 110 of FIG. 3 with skin layers 141 , 140 on either side of the non-woven material 110, the non-woven composite 1900 may be formed with non-woven materials 114, 112 with only a skin layer on one side of the non-woven material.
  • the formed web may be covered with various outer layers (such as knit or woven layers, stiffening layers, or adhesive layers) as described in FIGS. 5-15 before the web first surface 101 ' and/or the web second surface 104' of the non-woven web 100' are each subjected to a heat treatment, such as a calendar or a heated belt.
  • a heat treatment such as a calendar or a heated belt.
  • the non-woven web 101 ' is heat treated between a pair of heated belts, such as a laminator, to simultaneously heat the web first surface 101' and the web second surface 104'.
  • the heat treatment at the web first surface 101 ' causes the first binder fibers 121 at the web first surface 101 ' to fuse together with the other fibers in the web first surface 101 ' to form a film-like surface or skin and adhere the additional layers. It is contemplated that the heating step to stabilized the non-woven web 101' can be conducted simultaneously with the step of applying and adhering the adhesive layers 150, 152, 154 the additional non-woven layer 160, 162, and the knit or woven layer 170, 172, 174.
  • the heat treatment at the web first surfaces 101 ' causes the first binder fibers 121 at the web first surface 101 ' to fuse together with the other fibers in the web first surface 101' to form a film-like surface or skin 141 and adhere the outer layers to the non-woven material.
  • the heat treatment at the web second surface 104' causes the second binder fibers 131 at the web second surface 104' to fuse together and with the other fibers in the web second surface 104' to form a film-like surface or skin 140 and adhere the outer layers to the non-woven layer.
  • the non-woven composite has a density of between about 0.03 and 0.5 grams per cubic centimeter, more preferably 0.05 to 0.4 g/cm 3 . It has been found that this range provides office panels good strength, stiffness, and toughness.
  • the non-woven material 110 was formed from a blend of four fibers, including:
  • first binder fiber being about 2 denier, 2 inch staple length low melt polyester
  • first effect fibers being 2.25 denier, 2 inch staple length polyester fibers
  • second binder fibers being approximately 15 denier, 2 inch staple length low melt polyester fibers
  • second effect fibers being 15 denier, 2 inch staple length polyester fibers.
  • the fibers were opened, blended and formed into non-woven material 110 using a "K-12 HIGH-LOFT RANDOM CARD" by Fehrer AG. Specifically, the fibers are deposited onto the collecting belt of the K-12. After the fibers are collected, the non-woven web was approximately 1.25 inches in thickness. [0055] In example 1 , the non-woven composite as described by Figure 1 was assembled in the following order:
  • Knit or woven layer - Woven PET fabric commercially available from
  • Second adhesive layer - PET non-woven layer commercially available from SpunFab as PE2942 at 27 g/m 2 weight.
  • Non-woven material 110 as described above.
  • First adhesive layer - PET non-woven layer commercially available from
  • the non-woven composite as described by Figure 5 was assembled in the following order: Stiffening non-woven Layer - PET spunbond non-woven commercially available from Harodite as T06027 at 17 g/m 2 weight. Second adhesive layer - PET non-woven layer commercially available from SpunFab as PE2942 at 27 g/m 2 weight. Non-woven material 110 as described above. First adhesive layer - PET non-woven layer commercially available from Harodite as T06027 at 17 g/m 2 weight. Second adhesive layer - PET non-woven layer commercially available from SpunFab as PE2942 at 27 g/m 2 weight. Non-woven material 110 as described above. First adhesive layer - PET non-woven layer commercially available from
  • Knit or woven layer - Woven PET fabric commercially available from Milliken and Company's Contract Fabrics Business as fabric style number 062294.
  • Third adhesive layer - PET non-woven layer commercially available from
  • Stiffening non-woven Layer - PET spunbond non-woven commercially available from Harodite as T06027 at 17 g/m 2 weight.
  • Second adhesive layer - PET non-woven layer commercially available from SpunFab as PE2942 at 27 g/m 2 weight.
  • Non-woven material 110 as described above.
  • First adhesive layer - PET non-woven layer commercially available from
  • Stiffening non-woven Layer - PET spunbond non-woven commercially available from Harodite as T06027 at 17 g/m 2 weight.
  • the additional layers were placed onto the non-woven material and the composite was heated to approximately 16O 0 C and compressed to a thickness of about 4.5 millimeters on a belt laminator that has a heating and cooling zone.
  • the heat from the laminator caused the low melt fibers to melt creating a smooth surface (skin) on the outer surfaces of the non-woven material 110 and adhere the additional layers onto the non-woven material to form the non-woven composite.
  • the weight of the non-woven material 110 and non-woven composite 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900 can vary depending on the end use of the non-woven material.
  • the weight of the non-woven material can be from about 18 to about 36 ounces per square yard if the non-woven material is being used in the ceiling tile industry.
  • the weight of the non-woven material can be from about 15 to about 35 ounces per square yard if the material is being used in the automotive industry.
  • the weight of the non-woven material can be from about 5 to about 35 ounces per square yard if the material is being used in the office panel industry.
  • the use of a weight from about 7 to about 10 ounces per square yard for the non-woven material is better suited for the mattress industry.
  • the non-woven composite 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900 for this embodiment also preferably has at least one smooth surface suitable for printing.
  • a smooth surface can be created by keeping the denier of the first binder fiber 121 as small as possible, and creating the skin 110 on this embodiment for the printing surface.
  • the smaller denier of the first binder fiber 121 allows for tighter packing of the fibers, which will create a more dense, continuous (less porous) skin.
  • the non-woven composite 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900 has been subjected to a molding process that creates a relief, or three dimensional surface, in the whole composite or a surface of the composite.
  • the three dimensional surface of the non-woven composite can be apertures with in the material, or create projecting surfaces or planes from the surface of the composite.
  • the relief surface is positioned such that it becomes an outer surface when placed into an installation.

Abstract

La présente invention concerne un matériau non tissé constitué de fibres de premier type, de fibres de premier type liantes, de fibres de deuxième type liantes et, le cas échéant, de fibres de deuxième type. Le matériau non tissé contient une première et une seconde zones planaires. La première zone planaire contient une grande quantité de fibres de premier type et de fibres de premier type liantes. La seconde zone planaire contient une plus grande quantité de fibres de deuxième type et de fibres de deuxième type liantes. La première zone planaire peut contenir un premier revêtement de surface associé à la première zone planaire sur la partie externe du matériau non tissé, et un second revêtement associé à la seconde zone planaire sur la partie externe du matériau non tissé. Ce matériau a une couche tissée, tricotée ou bien une couche non tissée ajoutée et qui est positionnée sur l'un des côtés du matériau non tissé ou bien sur ses deux côtés.
PCT/US2007/020710 2006-10-27 2007-09-25 Composite non tissé WO2008054583A1 (fr)

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CA 2662815 CA2662815A1 (fr) 2006-10-27 2007-09-25 Composite non tisse
EP20070852428 EP2074249A1 (fr) 2006-10-27 2007-09-25 Composite non tissé
MX2009002719A MX2009002719A (es) 2006-10-27 2007-09-25 Compuesto no tejido.

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US11/588,950 2006-10-27
US11/588,950 US7709405B2 (en) 2005-05-17 2006-10-27 Non-woven composite

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WO2008054583A1 true WO2008054583A1 (fr) 2008-05-08

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EP (1) EP2074249A1 (fr)
CA (1) CA2662815A1 (fr)
MX (1) MX2009002719A (fr)
WO (1) WO2008054583A1 (fr)

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MX2009002719A (es) 2009-05-11
US7709405B2 (en) 2010-05-04
EP2074249A1 (fr) 2009-07-01
US20070066176A1 (en) 2007-03-22

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